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Builders FirstSource, Inc.

BLDR
Exchange
NYSE
Industry
Retail-Lumber & Other Building Materials Dealers
SEC CIK
0001316835

No open-market purchases or sales by Builders FirstSource, Inc. insiders were filed in the last 90 days; 671 institutions reported holding it in 13F filings for Q2 2026, worth $9.63B in total; 3 superinvestors hold it, including D1 Capital Partners and Semper Augustus.

13F holders, Q3 2021

Institutional positions in Builders FirstSource, Inc. as of Sep 30, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
404
+7 vs. Q2 2021
Shares held
203.3M
−1.40M (−0.7%) vs. Q2 2021
Total value
$10.5B
+$1.79B (+20.5%) vs. Q2 2021
New holders
64
111 more added
Sold out
57
168 more reduced

6 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting BLDR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2021: 404 institutions
Q1 2021: 380 institutionsQ2 2021: 403 institutionsQ3 2021: 404 institutionsQ4 2021: 494 institutionsQ1 2022: 509 institutionsQ2 2022: 491 institutionsQ3 2022: 490 institutionsQ4 2022: 518 institutionsQ1 2023: 544 institutionsQ2 2023: 662 institutionsQ3 2023: 675 institutionsQ4 2023: 745 institutionsQ1 2024: 859 institutionsQ2 2024: 776 institutionsQ3 2024: 832 institutionsQ4 2024: 819 institutionsQ1 2025: 786 institutionsQ2 2025: 776 institutionsQ3 2025: 778 institutionsQ4 2025: 768 institutionsQ1 2026: 726 institutionsQ2 2026: 671 institutions
Value heldQ3 2021: $10.5B
Q1 2021: $9.58BQ2 2021: $8.75BQ3 2021: $10.5BQ4 2021: $15.0BQ1 2022: $11.1BQ2 2022: $8.58BQ3 2022: $8.81BQ4 2022: $9.03BQ1 2023: $11.5BQ2 2023: $16.1BQ3 2023: $14.6BQ4 2023: $19.3BQ1 2024: $23.4BQ2 2024: $15.1BQ3 2024: $21.4BQ4 2024: $15.6BQ1 2025: $13.7BQ2 2025: $12.7BQ3 2025: $13.6BQ4 2025: $10.8BQ1 2026: $8.74BQ2 2026: $9.63B
Institutions holding BLDR and their total value by quarter
QuarterHoldersValue
Q2 2026671$9.63B
Q1 2026726$8.74B
Q4 2025768$10.8B
Q3 2025778$13.6B
Q2 2025776$12.7B
Q1 2025786$13.7B
Q4 2024819$15.6B
Q3 2024832$21.4B
Q2 2024776$15.1B
Q1 2024859$23.4B
Q4 2023745$19.3B
Q3 2023675$14.6B
Q2 2023662$16.1B
Q1 2023544$11.5B
Q4 2022518$9.03B
Q3 2022490$8.81B
Q2 2022491$8.58B
Q1 2022509$11.1B
Q4 2021494$15.0B
Q3 2021404$10.5B
Q2 2021403$8.75B
Q1 2021380$9.58B

Institutions, Q3 2021

Shares, value and share of portfolio for each institution holding Builders FirstSource, Inc.; share changes are against Q2 2021.

Institutions holding BLDR in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc18,654,571$965.2M0.02%−423,598−2.2%Reduced
BlackRock Inc.19,921,041$1.03B0.03%−308,928−1.5%Reduced
FMR LLC22,305,835$1.15B0.09%+2,841,535+14.6%Added
Sofos Investments, Inc.7––+7New
TimesSquare Capital Management, LLC0$00.00%−1,456,820−100.0%Sold out
HRT Financial LP0$00.00%−712,578−100.0%Sold out
Duquesne Family Office LLCSuperinvestorDuquesne Family Office0$00.00%−566,856−100.0%Sold out
Adage Capital Partners GP, L.L.C.0$00.00%−400,000−100.0%Sold out
Cobalt Capital Management, Inc.0$00.00%−300,000−100.0%Sold out
Marshall Wace, LLP0$00.00%−273,080−100.0%Sold out
Masterton Capital Management, LP0$00.00%−260,200−100.0%Sold out
Alyeska Investment Group, L.P.0$00.00%−183,389−100.0%Sold out
Squarepoint Ops LLC0$00.00%−173,742−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−147,437−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−129,639−100.0%Sold out
North Fourth Asset Management, LP0$00.00%−116,558−100.0%Sold out
Prospect Capital Advisors, LLC0$00.00%−102,400−100.0%Sold out
Friess Associates LLC0$00.00%−86,709−100.0%Sold out
Group One Trading, L.P.0$00.00%−85,093−100.0%Sold out
PEAK6 Investments LLC0$00.00%−81,553−100.0%Sold out
Hickory Lane Capital Management LP0$00.00%−81,250−100.0%Sold out
Lisanti Capital Growth, LLC0$00.00%−75,200−100.0%Sold out
Shay Capital LLC0$00.00%−72,480−100.0%Sold out
Driehaus Capital Management LLC0$00.00%−62,000−100.0%Sold out
LMR Partners LLP0$00.00%−53,599−100.0%Sold out
AdvisorShares Investments LLC0$00.00%−46,378−100.0%Sold out
Brigade Capital Management, LP0$00.00%−45,900−100.0%Sold out
Nomura Holdings Inc0$00.00%−43,923−100.0%Sold out
SummerHaven Investment Management, LLC0$00.00%−42,936−100.0%Sold out
Vident Investment Advisory, LLC0$00.00%−35,840−100.0%Sold out
Centiva Capital, LP0$00.00%−34,738−100.0%Sold out
Duality Advisers, LP0$00.00%−29,730−100.0%Sold out
Caption Management, LLC0$00.00%−28,000−100.0%Sold out
Windsor Creek Advisors, LLC0$00.00%−27,372−100.0%Sold out
Canada Pension Plan Investment Board0$00.00%−25,000−100.0%Sold out
Sciencast Management LP0$00.00%−23,214−100.0%Sold out
Capital CS Group, LLC0$00.00%−21,801−100.0%Sold out
Globeflex Capital L P0$00.00%−20,681−100.0%Sold out
Virtu Financial LLC0$00.00%−18,494−100.0%Sold out
Laurion Capital Management LP0$00.00%−17,316−100.0%Sold out
Waratah Capital Advisors Ltd.0$00.00%−16,992−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−16,288−100.0%Sold out
Grantham, Mayo, Van Otterloo & Co. LLC0$00.00%−12,919−100.0%Sold out
Csenge Advisory Group0$00.00%−11,015−100.0%Sold out
Level Four Advisory Services, LLC0$00.00%−11,126−100.0%Sold out
Appleton Group, LLC0$00.00%−8,874−100.0%Sold out
Wesbanco Bank Inc0$00.00%−8,650−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−8,520−100.0%Sold out
Hexavest Inc.0$00.00%−8,066−100.0%Sold out
IHT Wealth Management, LLC0$00.00%−7,040−100.0%Sold out
Panagora Asset Management Inc0$00.00%−6,826−100.0%Sold out
Amundi0$00.00%−6,758−100.0%Sold out
Guggenheim Capital LLC0$00.00%−6,362−100.0%Sold out
Bridgefront Capital, LLC0$00.00%−6,134−100.0%Sold out
Illinois Municipal Retirement Fund0$00.00%−5,954−100.0%Sold out
Quantitative Systematic Strategies LLC0$00.00%−4,903−100.0%Sold out
Advisory Services Network, LLC0$00.00%−2,472−100.0%Sold out
Exos Asset Management LLC0$00.00%−620−100.0%Sold out
Anchor Investment Management, LLC0$00.00%−156−100.0%Sold out
Larson Financial Group LLC0$00.00%−71−100.0%Sold out
Harel Insurance Investments & Financial Services Ltd.0$00.00%−8,000−100.0%Sold out
Pictet Asset Management Ltd––––Not filed
Cipher Capital LP––––Not filed
Wexford Capital LP––––Not filed
Horan Securities, Inc.––––Not filed
First Horizon Corp––––Not filed
CWM, LLC––––Not filed